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On 14 Sep 2024 at 03:52:14 BST, "Alan" <nuh-uh@nope.com> wrote:
On 2024-09-13 08:09, Andrew wrote:
Your Name wrote on Thu, 12 Sep 2024 18:31:02 +1200 :You still don't understand the difference between a "battery" and a "cell". >>
We were talking about phones with batteries which will last 6-7 days. >>>>> Which of these will do that?
Any phone, laptop, etc. battery can last for months ... just turn them >>>> off! :-p (Or at least as "off" as they can go.)
Unfortunately, "Your Name" has never taken a college Physics class.
Nor Chemistry. Nor Logic.
There are two fundamental metrics for "battery life" which people confuse. >>> a. In-use battery life
b. Long-term battery life
Bearing in mind that the latter drastically degrades the former.
Facts to note which the proponents of Apple's crappy batteries never seem >>> to understand are that all the tests they tout - are on very new batteries. >>>
None of the tests those who support Apple's crappy batteries are of
batteries that are a year or two old - which would be the mean of any phone >>> in our hands today (give or take) assuming a four-year average life.
That means, essentially, put bluntly, all the test they tout are rubbish. >>> The test that matters is a test when the battery is at the half life of the >>> phone, which, if we assume four years lifetimes, then test it at 2 years. >>>
The crappy batteries used in iPhones will degrade sooner than batteries
twice their capacity simply because of physics - which those who tout those >>> crappy Apple iPhone batteries don't know.
Bear in mind Apple is well aware they put crappy batteries in iPhones.
And rest assured, Apple knows that's the major determinant of overall life. >>
A device that uses one D-cell battery with power draw N will run for
just as long a device that draws 2*N.
Now *that*, I do not understand. IMHO, as a one-time physicist, it will run twice as long.
A cell, rechargeable on not, has a capacity of a certain number of ampere-hours. After that it must be recharged or discarded.
If you draw twice the current you run out in half the time.
Turning to ChatGPT,
____________________
The terms "cell" and "battery" are often used interchangeably, but technically, they refer to different things:
Cell: A cell is a single electrochemical unit that converts chemical energy into electrical energy. It consists of two electrodes (an anode and a cathode)
and an electrolyte. A common example is the AA, AAA, or D-cell batteries you might use in everyday devices. Each of these is technically a single cell.
Battery: A battery is a collection of one or more cells connected in series or
parallel to deliver a desired voltage and capacity. When you connect multiple cells, the combined voltage and capacity increase. For example, a car battery usually consists of multiple 2V cells combined to form a 12V battery. ____________________
But the concept of capacity, in terms of ampere-hours, applies equally to both.
I sincerely hope that it is unnecessary to explain "series" and "parallel"!
But the concept of capacity, in terms of ampere-hours, applies equally to both.
I sincerely hope that it is unnecessary to explain "series" and "parallel"!
badgolferman wrote on Tue, 10 Sep 2024 15:44:15 -0000 (UTC) :
FTR my killer feature would be 6-7 days of battery life.
"Not needed and no one wants it." ~ nospam
Not needed & nobody wants it - even tho - everyone on Android has it!
Chris wrote:
FTR my killer feature would be 6-7 days of battery life.
"Not needed and no one wants it." ~ nospam
On 2024-09-10 15:44:15 +0000, badgolferman said:
Chris wrote:
FTR my killer feature would be 6-7 days of battery life.
"Not needed and no one wants it." ~ nospam
Of course, the iPhone 17, 18, 19, etc. will have better batteries
again, so you should just wait for those.
Apple and their battery makers are working on solid state batteries,
which will be better again, but those won't make an appearance until at
least the iPhone 18 and more likely well into the iPhone 20 or later
models.
The iPhone 732 will have a 'lifetime' battery, so why not just wait for
that instead. ;-)
FTR my killer feature would be 6-7 days of battery life.
"Not needed and no one wants it." ~ nospam
... in the 2-3 years. It'll be a nice stable model with any AI wrinkles sorted out by ios 20.
It's funny how the "Apple so boring" brigade don't realise that Apple knows people are on 3-4 year cycles. Gone are the days when everyone got a new phone yearly. The iphone 16 is for the 12/13 owners of today and is a
decent upgrade for them.
I got my 13 last year so won't be upgrading until 2026.
FTR my killer feature would be 6-7 days of battery life. New software features aren't a big deal these days, especially if they end up using more power.
Chris wrote:
You're simply not going to get a powerful handheld device with
many days of battery life until there is a major breakthrough in
battery tech. (And yes there are some promising batts coming -
just not yet).
That's why it'll be a killer feature.
Let's hear the predictions for which mobile phone manufacturer will be
the firtst to release an extended life battery.
Alan wrote:
On 2024-09-11 15:26, badgolferman wrote:
Chris wrote:
You're simply not going to get a powerful handheld device with
many days of battery life until there is a major breakthrough
in battery tech. (And yes there are some promising batts
coming - just not yet).
That's why it'll be a killer feature.
Let's hear the predictions for which mobile phone manufacturer will
be the firtst to release an extended life battery.
You get that Apple's iPhones rank near the very top when it comes to
battery life...
...right?
You're not so stupid that you don't understand the difference between
a "battery" and a "cell"...
...right?
iPhone in 5th.
<https://m.gsmarena.com/battery-test-v2.php3>
iPhone in 15th
<https://www.tomsguide.com/us/smartphones-best-battery-life,review-2857.html>
iPhone in 4th
<https://nanoreview.net/en/phone-list/endurance-rating>
We were talking about phones with batteries which will last 6-7 days.
Which of these will do that?
Jörg Lorenz wrote:
ROTFLSTC
What does this mean? Why don't you just say the real words?
Alan wrote:
On 2024-09-11 15:26, badgolferman wrote:
Chris wrote:
You're simply not going to get a powerful handheld device with
many days of battery life until there is a major breakthrough
in battery tech. (And yes there are some promising batts
coming - just not yet).
That's why it'll be a killer feature.
Let's hear the predictions for which mobile phone manufacturer will
be the firtst to release an extended life battery.
You get that Apple's iPhones rank near the very top when it comes to
battery life...
...right?
You're not so stupid that you don't understand the difference between
a "battery" and a "cell"...
...right?
iPhone in 5th.
<https://m.gsmarena.com/battery-test-v2.php3>
iPhone in 15th
<https://www.tomsguide.com/us/smartphones-best-battery-life,review-2857.html>
iPhone in 4th
<https://nanoreview.net/en/phone-list/endurance-rating>
We were talking about phones with batteries which will last 6-7 days.
Which of these will do that?
We were talking about phones with batteries which will last 6-7 days.
Which of these will do that?
Any phone, laptop, etc. battery can last for months ... just turn them
off! :-p (Or at least as "off" as they can go.)
Your Name wrote on Thu, 12 Sep 2024 18:31:02 +1200 :
We were talking about phones with batteries which will last 6-7 days.
Which of these will do that?
Any phone, laptop, etc. battery can last for months ... just turn them
off! :-p (Or at least as "off" as they can go.)
Unfortunately, "Your Name" has never taken a college Physics class.
Nor Chemistry. Nor Logic.
There are two fundamental metrics for "battery life" which people confuse.
a. In-use battery life
b. Long-term battery life
Bearing in mind that the latter drastically degrades the former.
Facts to note which the proponents of Apple's crappy batteries never seem
to understand are that all the tests they tout - are on very new batteries.
None of the tests those who support Apple's crappy batteries are of
batteries that are a year or two old - which would be the mean of any phone in our hands today (give or take) assuming a four-year average life.
That means, essentially, put bluntly, all the test they tout are rubbish.
The test that matters is a test when the battery is at the half life of the phone, which, if we assume four years lifetimes, then test it at 2 years.
The crappy batteries used in iPhones will degrade sooner than batteries
twice their capacity simply because of physics - which those who tout those crappy Apple iPhone batteries don't know.
Bear in mind Apple is well aware they put crappy batteries in iPhones.
And rest assured, Apple knows that's the major determinant of overall life.
On 2024-09-13 08:09, Andrew wrote:
Your Name wrote on Thu, 12 Sep 2024 18:31:02 +1200 :
We were talking about phones with batteries which will last 6-7 days.
Which of these will do that?
Any phone, laptop, etc. battery can last for months ... just turn them
off! :-p (Or at least as "off" as they can go.)
Unfortunately, "Your Name" has never taken a college Physics class.
Nor Chemistry. Nor Logic.
There are two fundamental metrics for "battery life" which people confuse. >> a. In-use battery life
b. Long-term battery life
Bearing in mind that the latter drastically degrades the former.
Facts to note which the proponents of Apple's crappy batteries never seem
to understand are that all the tests they tout - are on very new batteries. >>
None of the tests those who support Apple's crappy batteries are of
batteries that are a year or two old - which would be the mean of any phone >> in our hands today (give or take) assuming a four-year average life.
That means, essentially, put bluntly, all the test they tout are rubbish.
The test that matters is a test when the battery is at the half life of the >> phone, which, if we assume four years lifetimes, then test it at 2 years.
The crappy batteries used in iPhones will degrade sooner than batteries
twice their capacity simply because of physics - which those who tout those >> crappy Apple iPhone batteries don't know.
Bear in mind Apple is well aware they put crappy batteries in iPhones.
And rest assured, Apple knows that's the major determinant of overall life.
You still don't understand the difference between a "battery" and a "cell".
A device that uses one D-cell battery with power draw N will run for
just as long a device that draws 2*N.